$ git clone -n https://gitee.com/src-opencloudos-rpms/dwarves.git /var/lib/mock/dist-oc9-build-41037-14591/root/chroot_tmpdir/scmroot/dwarves
Cloning into '/var/lib/mock/dist-oc9-build-41037-14591/root/chroot_tmpdir/scmroot/dwarves'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dwarves
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a321601 import dwarves-1.23-4.tl4